277138617

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 450616320

約数和(自身を除く): 173477703

約数列:

[1, 3, 7, 19, 21, 57, 133, 139, 263, 361, 399, 417, 789, 973, 1083, 1841, 2527, 2641, 2919, 4997, 5523, 7581, 7923, 14991, 18487, 34979, 36557, 50179, 55461, 94943, 104937, 109671, 150537, 255899, 284829, 351253, 664601, 694583, 767697, 1053759, 1993803, 2083749, 4862081, 13197077, 14586243, 39591231, 92379539, 277138617]

約数ペア:

[(1, 277138617), (3, 92379539), (7, 39591231), (19, 14586243), (21, 13197077), (57, 4862081), (133, 2083749), (139, 1993803), (263, 1053759), (361, 767697), (399, 694583), (417, 664601), (789, 351253), (973, 284829), (1083, 255899), (1841, 150537), (2527, 109671), (2641, 104937), (2919, 94943), (4997, 55461), (5523, 50179), (7581, 36557), (7923, 34979), (14991, 18487)]